Categories

• geography
• Economics,History
• Botany,Physics
• Mathematics
• Education
• economy
• Environmental Studies
• Others,Biology
• Computer Science
• Others,Education

Authors

• O.P
• ar
• Gorakh
• m.c.
• Datt
• Routray S.N.
• C.
• Das , R.C ,Mohanty , S.B
• Chand, S.
• G.D,Sehmidt